Question

1. in pickling onion, ______ is used as a preservative.

a. bicarbonate
b. milk
c. vinegar
d. water

1. food is mainly preserved to

a. improve its nutritional value.
b. reduce the temperature.
c. add moisture content.
d. render micro-organisms inactive.

1. identify the type of kitchen layout illustrated in the diagram below.

Explanation:

The image is upside down. Let's read the questions by rotating the text mentally:

Question 4:
"In pickling onion, ________ is used as a preservative."
A. bicarbonate
B. milk
C. vinegar
D. water

Using the Food Preservation Methods knowledge point

• Pickling is a preservation method that uses an acidic medium to prevent microbial growth.
• Vinegar (acetic acid) is the standard pickling agent used for onions to lower the pH and preserve them.

Question 5:
"Food is mainly preserved to"
A. improve its nutritional value.
B. reduce the temperature.

• C. add moisture content.
• D. render micro-organisms inactive.

Using the Food Preservation Methods knowledge point

• The primary goal of food preservation is to prevent spoilage by inhibiting or destroying microorganisms (bacteria, yeasts, molds) that cause decay.
• Therefore, the main purpose is to render micro-organisms inactive.

Answer:

Question 4

• (A) bicarbonate
• (B) milk
• (C) vinegar (Correct answer)
• (D) water

Question 5

• (A) improve its nutritional value.
• (B) reduce the temperature.
• (C) add moisture content.
• (D) render micro-organisms inactive. (Correct answer)